For Pokémon games on the Switch, the wonder card isn’t stored in the save. The best you could do is inject the item + enable the event flags. I’ve not seen reports of bans from simple injects. The bans almost always trickle in from the CFW side of things, and it being related to piracy or having “impossible” things on your Switch.
For the sake of clarity, I’ll reiterate and elaborate my point. Unlike previous generations, you cannot inject the wonder card to receive the item in-game. The way the games on the Switch work, is that they auto redeem it for you. There is a “wonder card record”, but all it does is record the wonder cards that you’ve received. Doesn’t allow you to receive in-game. Given how it doesn’t do much, I don’t think an editor for that exists at this time